Keyboard



FIG. 1 is a side perspective view of a keyboard according to the design;

FIG. 2 is a front view of the keyboard of FIG. 1;

FIG. 3 is a rear view of the keyboard of FIG. 1;

FIG. 4 is a top view of the keyboard of FIG. 1;

FIG. 5 is a bottom view of the keyboard of FIG. 1;

FIG. 6 is a right side view of the keyboard of FIG. 1; and,

FIG. 7 is a left side view of the keyboard of FIG. 1.

The broken lines in the drawings are for illustrative purposes only, and do not form part of the claimed design. 

The ornamental design for keyboard, as shown and described. 